South Africa country information

Common names: Kleiner sandkruiper, Lesser guitarfish
Occurrence: native
Salinity: brackish
Abundance: common (usually seen) | Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
Importance: | Ref:
Aquaculture: | Ref:
Regulations: restricted | Ref: van der Elst, R., 1993
Uses: gamefish: yes;
Comments: Ranges from the west coast to central Natal. Restricted to the surf zone in Natal but ranges down to 73 m south of Natal (Ref. 3919). Enters estuaries when upwelling occurs on the south coast (Ref. 3919). Sometimes caught by trawlers in the eastern Cape (Ref. 12484). Stock sound; important shore tournament catch; non-commercial (Ref. 4332). Although it is a poor fighter, it is considered a good catch by anglers because its flesh is makes excellent eating (Ref. 12484). Spearfishing this species is illegal in Natal (Ref. 12484).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
National Database:

Common names from other countries

Kleiner sandkruiper, Mummuline logardrai, 突吻犁头鳐, ... more

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

Пластиножаберные (акулы и скаты) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes)
Etymology:

Environment: milieu / climate zone / depth range / distribution range экология

морской; солоноватоводный демерсальный; пределы глубины 75 - ? m (Ref. 114953). Subtropical; 17°S - 36°S, 10°E - 34°E (Ref. 114953)

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Southeast Atlantic: Namibia to central Natal, South Africa. Record from Madagascar is uncertain (Ref. 3919).

Size / Вес / Возраст

Maturity: L_m ? range ? - ? cm
Max length : 140 cm TL самец/пол неопределен; (Ref. 3919)

Found from the surf line to about 70 m depth (Ref. 5578), also reported as common in shallow waters to at least 75 m depth (Ref. 114953); also enters estuaries (Ref. 27121). Feeds on crustaceans, bivalves, polychaete worms and small bony fishes (Ref. 5578). Ovoviviparous (Ref. 50449). Males mature at ca. 59 cm TL, females at 62-65 cm TL; born at ca. 23 cm TL. Produces litters of 2-10 pups (Ref. 114953). Taken by surf anglers (Ref. 3919). Flesh highly esteemed (Ref. 3919). It is parasitised by the monogeneans Pseudoleptobothrium christisoni on the dorsal skin surface (Ref. 124055) and Neoheterocotyle robii on the gill lamellae (Ref. 124054).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). 2-10 young born in the summer (Ref. 5578).

Основная ссылка Upload your references | ссылки | координатор : McEachran, John | соавторы

Compagno, L.J.V., 1986. Rhinobatidae. p. 128-131. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3919)

Статус Красного Списка МСОП (Ref. 130435)

уязвимый; см. Красный Список МСОП (VU) (A2bcd); Date assessed: 01 August 2019

CITES (Ref. 128078)

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

Использование человеком

рыболовство: коммерческий; объект спортивного рыболовства: да; аквариум: коммерческий

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Estimates based on models

Preferred temperature (Ref. 115969): 16.1 - 25.7, mean 22 (based on 36 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00214 (0.00124 - 0.00369), b=3.06 (2.90 - 3.22), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.51 se; based on food items.

устойчивость к внешним воздействиям (Ref. 120179): очень низкий, минимальное время удвоения популяции более 14 лет (Fec=2).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (84 of 100).

Категория цены (Ref. 80766): Low.

Acroteriobatus annulatus (Smith, 1841)